Adding error handlers to setup.exe

base/BUILD.gn

 # Copyright (c) 2013 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import("//build/config/compiler/compiler.gni")
 import("//build/config/ui.gni")
 import("//testing/test.gni")
 
 if (is_android) {
   import("//build/config/android/rules.gni")
@@ skipping 1172 matching lines @@
       "/SUBSYSTEM:WINDOWS",
     ]
     libs = [
       "cfgmgr32.lib",
       "shell32.lib",
     ]
     deps = [
       "//build/config/sanitizers:deps",
     ]
   }
+
+  source_set("process_startup_helper_win") {
+    sources = [
+      "win/process_startup_helper.cc",
+      "win/process_startup_helper.h",
+    ]
+    deps = [
+      "//base",
+      "//base:base_static",
+    ]
+  }
 }
 
 # TODO(GYP): Delete this after we've converted everything to GN.
 # The _run targets exist only for compatibility w/ GYP.
 group("base_unittests_run") {
   testonly = true
   deps = [
     ":base_unittests",
   ]
 }
@@ skipping 477 matching lines @@
 
   # GYP: //base.gyp:base_java_unittest_support
   android_library("base_java_unittest_support") {
     deps = [
       ":base_java",
     ]
     java_files =
         [ "test/android/java/src/org/chromium/base/ContentUriTestUtils.java" ]
   }
 }